While I firmly believe that Armed Citizens and off-duty police officers can make a difference in preventing and stopping such massacres, there’s no such thing as a free lunch. Gunowners, whether carrying a gun or keeping a gun at home, can and do make mistakes, sometimes very serious ones. I have some concern about brand new gunowners carrying their guns with them everywhere without some education about how to do it safely. That may not be a popular view but that’s the way I see it.

I have often chastised the training community for failing to create non-traditional educational materials that can reach a…